Hostname

j5v.cn

Last fetched Thu, 23 Jul 2026 07:03:39 GMT

j5v.cn resolves to 1 IPv4 address operated by AS55990 in CN.

Nutrition Label

Resolution chain

j5v.cn resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
121.37.213.40	121.37.192.0/18	AS55990	—	CN

WHOIS identity

No WHOIS records are currently associated with j5v.cn in WhisperGraph.

Subdomains

1 observed subdomain of j5v.cn.

Subdomain
www.j5v.cn

Threat posture

History

Mail and authentication

MX records

mx2.sendcloud.org

SPF policy

1 SPF mechanism authorising senders for j5v.cn.

Mechanism	Target
SPF_INCLUDE	spf.sendcloud.org

Pivot deeper into the graph from j5v.cn.

Cypher and MCP

Reproduce the resolution chain directly against graph.whisper.security:

MATCH (h:HOSTNAME {name: "j5v.cn"})-[:RESOLVES_TO]->(ip:IPV4)
      -[:ANNOUNCED_BY]->(ap:ANNOUNCED_PREFIX)
      -[:ROUTES]->(asn:ASN)-[:HAS_NAME]->(n:ASN_NAME)
RETURN ip.name AS ip, ap.name AS prefix, asn.name AS asn, n.name AS operator
LIMIT 20

Or query Whisper from your own LLM workflow via the Whisper MCP server.